PSI - Issue 19

S. Periane et al. / Procedia Structural Integrity 19 (2019) 415–422

418

S.Periane et al. / Structural Integrity Procedia 00 (2019) 000 – 000

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4.3. Machining

The face milling is performed on the samples with the following cutting conditions as shown in the table 1.

Table 1. Machining Conditions for both dry and emulsion conditions

Cutting Speed (Vc) 30 m/min

Depth of cut (ap)

0.5 mm

Feed rate (fz)

0.1 mm/tooth Emulsion type (IGOL- USINOV 2475) At a pressure

10 bar

The machining tests were done using digitally controlled Hermle C40U in both dry and in emulsion conditions (internal cooling spindle). Before machining the cutting-edge radius of the inserts was measured which were around 27±5µm. After machining insert wear measurements were done using Leica binocular microscope on maximum of 4X magnification using Olympus SC30 camera. The machining setup is shown in the figure.4 where the samples are mounted on to the Kistler type 9255B dynamometric table. The cutting forces were measured in both dry and emulsion machining conditions shown in by connecting the setup to computer equipped with DynoWare software. The values of the cutting forces are shown in figure 5(a). The roughness for all the samples were measured before and after machining using 3D optical profilometer VEECO WYKO NT1100 shown in figure 5(b).

F i Fig. 4. Machining setup for both dry and emulsion condition